84212136 has 48 divisors (see below), whose sum is σ = 236527200. Its totient is φ = 28070064.

The previous prime is 84212113. The next prime is 84212137. The reversal of 84212136 is 63121248.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84212137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19716 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (4927650).

Almost surely, 2^84212136 is an apocalyptic number.

It is an amenable number.

84212136 is an abundant number, since it is smaller than the sum of its proper divisors (152315064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84212136 is a wasteful number, since it uses less digits than its factorization.

84212136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43340 (or 43324 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 84212136 is about 9176.7170600384. The cubic root of 84212136 is about 438.3202761640.

It can be divided in two parts, 84212 and 136, that added together give a palindrome (84348).

The spelling of 84212136 in words is "eighty-four million, two hundred twelve thousand, one hundred thirty-six".